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Wifi Sensor

Assumes you are a developer with git and Golang installed

Changing the Time to Send Data

Modify session-counter.ini in imls-wifi-sensor/cmd/linux-session-counter and/or imls-wifi-sensor/cmd/windows-session-counter

  • If in prod:
    • [cron] reset=0 0 ** *
    • This sends data to the database every 24 hours
  • If in dev:
    • [cron] reset=*/5* ** *
    • This sends data to the database every 5 minutes

Running session-counter

  • Open your terminal to this repository
  • cd to imls-raspberry-pi/cmd/session-counter
  • Run go run session-counter.go
  • To run developer mode instead of production, run go run session-counter.go --mode dev
    • Instead of running Wireshark, this runs fakeWireshark that creates fake MAC addresses for testing purposes
    • This is helpful for testing purposes when a developer does not have access to real sensors and devices
  • To run with real hardware on linux, you'll need some software installed:
    • sudo add-apt-repository -y ppa:wireshark-dev/stable
    • sudo apt install -y iw tshark.

Possible errors

You may get a soft block error for your wifi device.

9:43AM FTL command failed error="exit status 2" command="/usr/sbin/ip link set wlx9cefd5fa48b4 up"

~/git/estimating-wifi/imls-wifi-sensor$ sudo rfkill list
0: phy0: Wireless LAN
        Soft blocked: yes
        Hard blocked: no

You could follow these instructions to unblock depending on your host machine. (These instructions are for Ubuntu.)